fix(interactive): Fix label parsing when it is NONE

[BingqingLyu]

Committed-by: bingqing.lbq from Dev container

What do these changes do?

As titled.

Related issue number

Fixes #4613

[github-actions[bot]]

Please check the preview of the documentation changes at https://03700c5a.graphscope-docs-preview.pages.dev

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 33.02%. Comparing base (e512820) to head (f495bd8).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4614   +/-   ##
=======================================
  Coverage   33.02%   33.02%           
=======================================
  Files         127      127           
  Lines       13299    13299           
=======================================
  Hits         4392     4392           
  Misses       8907     8907           

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[github-actions[bot]]

/cc @yecol @sighingnow, this issus/pr has had no activity for a long time, please help to review the status and assign people to work on it.